[sdiy] Can you call the low pass filter in a frequency shifter an antialiasing filter?
Stromeko at nexgo.de
Tue Oct 5 19:40:18 CEST 2010
On Tuesday 05 October 2010, cheater cheater wrote:
> So is there an easy explanation of what a quadrature mixer is? I'm
> happy for heavy maths, but heavy electronics scare me a bit ...
Then it will certainly excite you to hear that "quadrature mixer" is the
maths-light term for the more math-heavy description "mixer that works with
analytic signals" (and for the more practically minded description "single-
sideband mixer"). "Mixing" refers to modulation, which is a multiplication
in the time-domain or equally a folding operation in the frequency domain.
"Analytic signal" is a description of a signal by a superposition of complex
exponentials instead of real-valued functions.
+<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+
SD adaptation for Waldorf Blofeld V1.15B11:
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